javascript 积累/** *四舍五入 */function number(){var a3.13159265358279643383279alert(a.toFixed(4))
javascript 积累
/** *四舍五入 */function number(){var a=3.13159265358279643383279alert(a.toFixed(4));} javascript 积累
/** *四舍五入 */function number(){var a=3.13159265358279643383279alert(a.toFixed(4));}